Gene cloning provides a means of purifying and propagating specific dna segments . 基因克隆化提供了一种纯化和扩增特定DNA片段的方法。
If device i did not generate the interrupt it will propagate the acknowledge signal to device ii . 如果设备不产生中断，则把应答信号传输到设备。
He had studied abroad, but had returned chicago with a view to propagating art in the west . 他曾到外国去读书，但是回到芝加哥来，想在西部传播艺术。
Various clones families could be propagated commercially without having been clonally tested . 在这些家系中不同无性系被大量地繁殖，也没有进行无性系的测定。
Fracture mechanics can be used to determine the conditions in which a rapidly propagating crack can be arrested . 断裂力学可用来确定制止裂纹快速扩展的条件。
Many trees can be propagated from vegetative shoots, thus reproducing their genotypes exactly . 许多树木能够利用营养枝繁殖，这样，它们的基因型可以精确地传衍。
From an earthquake source within an elastic medium, both types of body waves will propagate outward into the medium . 这两种体波将从弹性介质中的震源出发，向外传播到介质中去。
Inside the film, the field varies sinusoidally and the entire surface-wave mode propagates alone the horizontal z direction . 在薄膜内，场按正弦函数变化，整个表面波模沿水平Z方向传播。
we have to distinguish between the propagating modes with real valued β, and the evanescent modes with imaginary β. 我们必须分别考虑具有实数的导模和具有虚数的消失模。
